Q65.If in a regular polygon the number of diagonals is 54, then the number of sides of this polygon is: (1) 12 (2) 10 (3) 6 (4) 9
What This Question Tests
This is a straightforward question that tests the knowledge of the formula for the number of diagonals in a polygon and solving a resulting quadratic equation.
Concepts Tested
Formulas Used
Number of diagonals = n(n-3)/2
๐ NCERT Sections This Tests
2.2 โ A Regular Hexagon Of Side 10 Cm Has A Charge 5 Mc At Each Of Its
Physics Class 11 ยท Chapter 2
2.2 A regular hexagon of side 10 cm has a charge 5 mC at each of its vertices. Calculate the potential at the centre of the hexagon.
5.12 โ Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 ยท Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
5.16 โ Draw Figure To Show The Splitting Of D Orbitals In An Octahedral Crystal Field.
Chemistry Class 11 ยท Chapter 5
5.16 Draw figure to show the splitting of d orbitals in an octahedral crystal field.
๐ Question Details
- Chapter
- Permutation & Combination
- Topic
- Polygons
- Year
- 2015
- Shift
- 11 Apr Online
- Q Number
- Q65
- Type
- MCQ
- NCERT Ref
- Class 10 Mathematics Ch 4: Quadratic Equations
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